﻿using System;
using System.Collections.Generic;
using System.IO;
using System.IO.IsolatedStorage;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Xml;
using System.Xml.Serialization;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;

namespace BEO
{
    public partial class App : Application
    {
        // errands storage file
        private string FileName = "errands.xml";

        // reference by going (App.Current as App).Errands
        private ErrandCollection errands = null;
        public ErrandCollection Errands
        {
            get { return errands; }
            private set { errands = value; }
        }

        /// <summary>
        /// Provides easy access to the root frame of the Phone Application.
        /// </summary>
        /// <returns>The root frame of the Phone Application.</returns>
        public PhoneApplicationFrame RootFrame { get; private set; }

        /// <summary>
        /// Constructor for the Application object.
        /// </summary>
        public App()
        {
            // Global handler for uncaught exceptions. 
            UnhandledException += Application_UnhandledException;

            // Standard Silverlight initialization
            InitializeComponent();

            // Phone-specific initialization
            InitializePhoneApplication();

            // Show graphics profiling information while debugging.
            if (System.Diagnostics.Debugger.IsAttached)
            {
                // Display the current frame rate counters.
                Application.Current.Host.Settings.EnableFrameRateCounter = true;

                // Show the areas of the app that are being redrawn in each frame.
                //Application.Current.Host.Settings.EnableRedrawRegions = true;

                // Enable non-production analysis visualization mode, 
                // which shows areas of a page that are handed off to GPU with a colored overlay.
                //Application.Current.Host.Settings.EnableCacheVisualization = true;

                // Disable the application idle detection by setting the UserIdleDetectionMode property of the
                // application's PhoneApplicationService object to Disabled.
                // Caution:- Use this under debug mode only. Application that disables user idle detection will continue to run
                // and consume battery power when the user is not using the phone.
                PhoneApplicationService.Current.UserIdleDetectionMode = IdleDetectionMode.Disabled;
            }

        }

        // Code to execute when the application is launching (eg, from Start)
        // This code will not execute when the application is reactivated
        private void Application_Launching(object sender, LaunchingEventArgs e)
        {
            OpenErrands();
        }

        // Code to execute when the application is activated (brought to foreground)
        // This code will not execute when the application is first launched
        private void Application_Activated(object sender, ActivatedEventArgs e)
        {
            OpenErrands();
        }

        // Code to execute when the application is deactivated (sent to background)
        // This code will not execute when the application is closing
        private void Application_Deactivated(object sender, DeactivatedEventArgs e)
        {
            SaveErrands();
        }

        // Code to execute when the application is closing (eg, user hit Back)
        // This code will not execute when the application is deactivated
        private void Application_Closing(object sender, ClosingEventArgs e)
        {
            SaveErrands();
        }

        // Code to execute if a navigation fails
        private void RootFrame_NavigationFailed(object sender, NavigationFailedEventArgs e)
        {
            if (System.Diagnostics.Debugger.IsAttached)
            {
                // A navigation has failed; break into the debugger
                System.Diagnostics.Debugger.Break();
            }
        }

        // Code to execute on Unhandled Exceptions
        private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
        {
            if (System.Diagnostics.Debugger.IsAttached)
            {
                // An unhandled exception has occurred; break into the debugger
                System.Diagnostics.Debugger.Break();
            }
        }

        public void UpdateApplicationTile()
        {
            ShellTile appTile = ShellTile.ActiveTiles.First();

            if (appTile != null)
            {
                StandardTileData standardTile = new StandardTileData
                {
                    Title = "Optimize yer Life",
                    BackBackgroundImage = new Uri("Resources/Images/LiveTile.png", UriKind.Relative),
                    Count = Errands.Count,
                    BackTitle = "Optimize yer Life",
                    BackContent = "BEO",
                    BackgroundImage = new Uri("Resources/Images/LiveTile.png", UriKind.Relative)
                };

                appTile.Update(standardTile);
            }
        }

        #region Phone application initialization

        // Avoid double-initialization
        private bool phoneApplicationInitialized = false;

        // Do not add any additional code to this method
        private void InitializePhoneApplication()
        {
            if (phoneApplicationInitialized)
                return;

            // Create the frame but don't set it as RootVisual yet; this allows the splash
            // screen to remain active until the application is ready to render.
            RootFrame = new PhoneApplicationFrame();
            RootFrame.Navigated += CompleteInitializePhoneApplication;

            // Handle navigation failures
            RootFrame.NavigationFailed += RootFrame_NavigationFailed;

            // Ensure we don't initialize again
            phoneApplicationInitialized = true;
        }

        // Do not add any additional code to this method
        private void CompleteInitializePhoneApplication(object sender, NavigationEventArgs e)
        {
            // Set the root visual to allow the application to render
            if (RootVisual != RootFrame)
                RootVisual = RootFrame;

            // Remove this handler since it is no longer needed
            RootFrame.Navigated -= CompleteInitializePhoneApplication;
        }

        // Initialize the errands collection from xml file
        private void InitializeErrands()
        {
            OpenErrands();
        }

        private void OpenErrands()
        {
            // Read from the Isolated Storage
            try
            {
                using (IsolatedStorageFile myIsolatedStorage = IsolatedStorageFile.GetUserStoreForApplication())
                {
                    using (IsolatedStorageFileStream stream = myIsolatedStorage.OpenFile(FileName, FileMode.OpenOrCreate))
                    {
                        if (stream.Length > 0)
                        {
                            XmlSerializer serializer = new XmlSerializer(typeof(ErrandCollection));
                            Errands = (ErrandCollection)serializer.Deserialize(stream);
                        }
                        else
                        {
                            Errands = new ErrandCollection();

                            // add sample data...
                            LoadSampleData();
                        }
                    }
                }
            }
            catch
            {
                //error handling here...
            }

            UpdateApplicationTile();
        }

        private void LoadSampleData()
        {
            Errands.Add(new Errand()
            {
                Title = "Dropoff Pants",
                Address = "1006 Lake Street South, Kirkland, WA",
                Description = "Check for pant leg repair...",
                Latitude = 47.6675489,
                Longitude = -122.2067509,
                Time = 5
            });

            Errands.Add(new Errand()
            {
                Title = "Send Package",
                Address = "1171 Bellevue Way Northeast, Bellevue, WA",
                Description = "Make sure packaging is ok",
                Latitude = 47.6207799,
                Longitude = -122.2017892,
                Time = 15
            });

            Errands.Add(new Errand()
            {
                Title = "Apply for Passport",
                Address = "300 5th Avenue, Suite 600, Seattle, WA",
                Description = "Bring app, birth cert, and check",
                Latitude = 47.6020700,
                Longitude = -122.3272460,
                Time = 30
            });

            Errands.Add(new Errand()
            {
                Title = "Pick up Regalia",
                Address = "1900 Commerce Street  Tacoma, WA",
                Description = "Pickup cap and gown",
                Latitude = 47.2442188,
                Longitude = -122.4373350,
                Time = 15
            });

            Errands.Add(new Errand()
            {
                Title = "Grocery Shopping",
                Address = "7250 Pacific Ave, Tacoma, WA",
                Description = "Grab souffle stuff",
                Latitude = 47.6675489,
                Longitude = -122.2067509,
                Time = 60
            });
        }

        private void SaveErrands()
        {
            // update tile
            UpdateApplicationTile();

            // Write to the Isolated Storage
            XmlWriterSettings xmlWriterSettings = new XmlWriterSettings();
            xmlWriterSettings.Indent = true;

            using (IsolatedStorageFile myIsolatedStorage = IsolatedStorageFile.GetUserStoreForApplication())
            {
                using (IsolatedStorageFileStream stream = myIsolatedStorage.OpenFile(FileName, FileMode.Create))
                {
                    XmlSerializer serializer = new XmlSerializer(typeof(ErrandCollection));
                    using (XmlWriter xmlWriter = XmlWriter.Create(stream, xmlWriterSettings))
                    {
                        serializer.Serialize(xmlWriter, Errands);
                    }
                }
            }
        }

        #endregion
    }
}